Ekimov and Alexander Efros1981 Tupolev Tu-160 The Tupolev Tu-160 is a supersonic, variable-geometry heavy bomber designed by the Soviet Union. Although several civil and military transport aircraft are bigger, the Tu-160 has the greatest total thrust, and the heaviest takeoff weight of any combat aircraft, and the highest top speed as well as one of the largest payloads of any current heavy bomber. Pilots of the Tu-160 call it the “White Swan”, due to its maneuverability and anti-flash white finish.1982 Helicopter ejection seat Kamov Ka-501984 Tetris by Alexey Pazhitnov1986 Modular space station Mir space station1987 MIR submersible The first to reach the seabed under the North Pole. Developed in cooperation with Finland.1987 RD-170 rocket engine The world's most powerful liquid-fuel rocket engine.1988 Buran 1989 Kola Superdeep Borehole The deepest borehole in the world.1989 Supermaneuverability Sukhoi Su-27, Pugachev's Cobra maneuver.1989 Tupolev Tu-155 The world's first aircraft to use liquid hydrogen as fuel. Early 1990s 1989-1991 BARS apparatus 1991 Thermoplan The thermoplan is a disc-shaped airship of hybrid type, currently under development in Russia. The key feature of thermoplan is its two section structure. The main section of the airship is filled with helium, while the other section is filled with air that can be heated or cooled by the engines. This design greatly improves the maneuverability, alongside the disc shape which helps resist the powerful winds up to 20 metre per second. The projet was started in the late 1980s and the early 1990s, with the first working prototype tested in 1991. That was rather small airship, and the giant thermoplan wasn't built at that time due to the problems caused by the economy crisis of the 1990s. In the late 2000s (decade), the project was revived under the name Locomoskyner by the Russian company Locomosky in Ulyanovsk. 1991 Scramjet The Central Institute of Aviation Motors (CIAM) KHOLOD Hypersonic Flying Laboratory. First successful supersonic combustion ramjet flight demonstration. Russian Federation 1990s RD-180 Engine Dual-combustion chamber, dual-nozzle rocket engine, derived from the RD-170 used in Soviet Zenit rockets, and currently provides first-stage power for the American Atlas V launch vehicle. 1992 Znamya (space mirror) 1992 Nuclotron Nuclotron is the world's first superconductive synchrotron, exploited by the Joint Institute for Nuclear Research in Dubna, Moscow Oblast. This particle accelerator is based on a miniature iron-shaped field superconductive magnets, and has a particle energy up to 7 GeV. It was built in 1987-1992 as